With Shimano's new M8000 crankset you can ride anywhere with confidence and performance.
The new 8000 has more durable chainring teeth than ever before. New 3D composite chainring teeth composition is optimized for each chainring load with steel driving gear teeth and aluminium support gears. Improved rigidity. Looser ratio gear combinations for minimum shifting gaps and maintaining rhythm. Enhanced chain retention system. Better sealing and better rotation.
Basically its all new and super impressive.